Orientation dependence of the NMR signal of deformed NaCl single crystals

The ²³Na signal of different deformed NaCl crystals was measured as function of the angle of rotation of the crystal with respect to the static magnetic field. The second moment of the NMR line is changed periodically determined by the slip mechanism. It is shown that the measured second moment can be obtained by a superposition of the parts originating from two-fold and four fold slip, respectively. The portion of the two slip mechanisms can be calculated quantitatively by fitting the experimental points.